Counterbalanced cellar-door.



F.- S. SMALLWOOD. COUNTERBALANCED GELLAR DOOR.

APPLICATION FILED DC.20, 1915.

Patented Mar.

...u www.. ...uw UWM www... H mw.

mr Nmmls psrsns an mwmumv.. wnsnmcx WTE@ TATE PATENT @FFCFL y FRANKY sj si/IALLWOOD, or INDIANAPOLIS, INDIANA.

CONTERBALANCED GELLAR-DOOR.

y Specification of Letters Patent.

Patented Mar. e, ier 7'. Application filed December 20, 1915. Serial No. 67,887. l

To all whom z'zf mayfconcem: smaller frame 8, formed out of angle-bars, Be it known that I, FRANK S. SMALL- is riveted in the manner shown. These two woon, a citizen of the 'United States, resid-. d ing at Indianapolis, in the county of Marion 5 and State of Indiana, have invented cer- I tain new and useful Improvements in jecting members of the respective frames 8, Counterbalanced Cellar-Doors, of which the at the ends of.the latter, and also through following is a specification. the vertical members of the frame 5 at the The object of this invention is to hinge ends of said frame 5, where the rods will be l cellar doors in such a manner that the liaheld from longitudinal displacement bv a bility of breaking the hinges or of unduly Cotter pin l() or the like. A washer ll, will straining them-when the doors are thrown generally be interposed between the frames full open, is obviatcd, and a further object and 8 to take up any looseness. The doors is to so counterbalance the doors that they vwill preferably be longer than the length of may be opened and closed with but little eX- t ie opening in frame 5, so they will overlap ertion on the part of the Operator. said frame at each end of the latter and be In addition to the above, the object is to supported by the frame when the doors are provide a strong and durable construction closed. This overlap, however, cannot eX- throughout, and also one which will have no tend to those portions adjacent the hinges projecting hinges or other parts to trip which 'swing' downwardly with'in'the frame pedestrians when the doors are located in a during the opening of the doors. rlfhe door-v sidewalk, as is often the case. plates are therefore cut away as shown and I accomplish the above, and other objects the resulting spaces are lilled, when the which will hereinafter appear, by the mechdoors are closed, by plates 12 which are anism illustrated in the accompanying riveted to the frame 5.k A plate 13 riveted drawings, in which* to one of the doors, overlaps theother door Figure l, is a top plan view of my invenwhen the doors are closed, tion with the doors closed; the frame mem- Riveted to the door plates close to theA bers being shown in dotted lines and a porouter edges of the plates are the hinge memtion of one of the doors being broken away bers .las to which weight-supporting bars to show the parts below. Fig. 2 is a ver- 15-two for each door`are hinged as shown tical section on the line 22 of Fig. l, and in Figs. 2 and 3, and from each pair of bars Fig. 3 is a fragment showing the manner of Der door, a weight 16 is suspended, here attaching the counterweights. shown as by passing the bars l5 through Like characters of reference indicate like suitable holes 1n the member 16 and retainparts throughout the several views of the lng the bars by a nut or Cotter pin as shown drawings. The weights will be regulated to nearly but Resting upon a wall 4 of masonry of any not quite balance the doors, whereby they usual and suitable construction is a framev will remain closed when placed in that po- 5 preferably formed out of metal angle-bars l.sition but may be raised and opened with which fit the walls in the manner as is Livery little exertion on the part of the opclearly shown in Fig. 2, and riveted upon ","feratorn v the two longitudinal or side members of this fi The great simplicity of my invention is frame are the metal plates 6, 6, which pro uch that its oper ation will be obvious wlthject inwardly of the inner walls of the nt further explanation frame, in the manner shown, forming an While I have described my invention with overhanging edge along each inner side of the fra-me On the contrary, r1.5' changes 1n form, construction and arrangethe omission of immaterial elements und the substitution of equivalents as cireuinstanees may suggest or necessity render expedient.

I claim:

The combination with a cellar door-freine of angle iron with one flange laid horizontally and the other depending vertically therefroin, and an inside overhanging member, jof :L door comprising an outside plate and e frame of 'angle iron riveted to the inner Side of said plate, :i rod extending across the door through Said lust 'ranie and hai/ing its ends gourneled in the depending lunge of seid first frame, :L pair of weightsuspending here' hinged to the door plate between seid hinge rod and the adj acentedge of the door which is parallel with. the rod, nem. the rod, and it weight connecting the two bars and removably secured thereto approximately counterbalancing the weight of the door.

In witness whereof I have hereunto set my hand sind Seel at Indianapolis, Indiana, this 30th dey oi Noi/einher, A. D. one-thousand nine hundred and fifteen.

FRANK e. eMALLwooD. [1.. 5.]

Copies of this patent inay be obtned for live cents ech, by addressing the Commissioner of Patents,

' Washington; iD. CL 

